Surgical instrument.



W. H. BARNES. SURGICAL INSTRUMENT. APPLICATION FILED H0129. 1907.

900,343. Patented 0011.6,1908.

IHIHUHILL HUT-7 pnrrnn srArss PATENT onnron WILLIAM HENRY BARNES, OFHOM'EWOOD, MISSISSIPPI SURGICAL INSTRUMENT.

Specification of Letters Patent.

Patented Oct. 6, 1908.

Application filed November 29, 1907. Serial No. 404,471.

To all whom it may concern: a

Be it known that I, WILLIAM HENRY BARNES, a citizen of theUnited'States, residing at Homewood, in the countyof Scott and State ofMississippi, have invented certain new and useful Improvements inSurgical Instruments, of whichthe following is a specification.

' fetus.

of the child is causedby asphyxiation, when This invention provides aninstrument for use in connection with childbirth, in thecase of breechpresentations, to conduct air to the In many cases ofstillbirth thedeath a large proportion of them could be'saved by properventilation,and it is for this purpose that the instrument provided bythis invention; is designed. V I I When read in connection with thedescription herein, the formation and details ofthe ings, 6 designates aspoon-like somewhat flattened portion having a concaveor hollowed outportion 7 therein. Extending from portion 6 is a grip portion-8, formedby reducing the material extending from the spoon like portion, andleaving a substantially flat cross 1 surface 9. Extending from thissurface to the bowl 7 is an air orventilating conduit 10.

The material of the instrument coincident with surface 9 issomewhat'raised above the remainder of the spoon-like portion, to reduce the liability of tissues slipping thereover and interfering withentrance of air into passagelO. 3

The instrument should be made of metal, hard rubber, or any othersuitable non-a o sorbent material capable of receiving. a high polishand of being readily sterilized- I The instrument is to be used inbreech presentations, when the body of. the child is expelled and theexpulsion pains stop. In such cases the child will ordinarily soon diefrom asphyxia. By inserting this instrument, however, and fitting itsbowl portion over the mouth of the child, it receives air and canbreathe and live until the head can be'expelled. The bowl or spoon-likeportion being somewhat flattened, the instrument may be readily insertedto the proper position without injury to the mother or to the fetus; andthe instrument is sufiiciently broad at its flattened portion toentirely cover the mouth of'the fetus, so as to prevent surroundingtissues stopping up the mouth and. interfering with respiration throughthe air-conduit. v

To introduce the ventilator, when the body of the child is expelled andthe pains stop, leaving the head inthe mother, the physician raises thechild with one hand, or has his assistant do it, then inserts a finger,draws down the chin slightly, and passes the instrument under the chinand over the mouth, letting the upper or spoon end rest on the uppermaxillary bone, whereby the spoonlike bowl'will be over the mouth of thechild and the air-passage in communication with the childs mouth,whereby air is furnished to the child during the period mentioned. Theinstrument may remain in this position until the head is expelled, as itdoes not interfere with the exit of the head, the instrument coming awaywith the head; or, if desired, the instrument may be Withdrawn just be-,fore exitof the head. 7

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1 An instrument comprising a hollowed out portion adapted to be insertedinto a motherat childbirth, a grip portion extend- .ingfrom saidhollowed out portion in a man- :ner to project from the mother when theinstrument is in' place, and an air-conduit extending from the hollowedout portion to the projecting end of the grip portion, said instrumentbeing of general flattened contour throughout its length, and crossed onthe side opposite to the hollowed out portion by a raised portion, andbeing adapted to lie with itsihollowed out portion over themouth andagainst the chin of the fetus.

2. An instrument comprising a spoon-like bowled portion on one sideadapted to be insorted into a mother at childbirth, a grip portionextendedtherefrom, a raised portion adjacent to the'grip portion on theside of the instrument opposite to the spoon-like pori In testimonywhereof I have eflixed my tion, and an air-conduit extending from thesignature, in presence of two witnesses. bowled portion toward the endof the rip T r 7 portion, the instrument from end to end on XVILLIAM Huhhi 5 the side with the bowled portion being fiat- Witnesses:

J. L. TANNER,

tened and arranged to lie over the mouth and against the chin of afetus. 1 O. H. NOBLIN.

